| JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | |
| 1997 | 171,740.00 | 377,226.00 | 588,348.00 | 735,364.00 | 910,499.00 | 1,096,160.00 | 1,276,312.00 | 1,486,912.00 | 1,696,805.00 | 1,899,280.00 | 2,098,701.00 | 2,293,695.00 |
| 1998 | 185,343.88 | 413,221.47 | 653,316.69 | 812,865.06 | 989,553.35 | 1,189,394.98 | 1,374,803.72 | 1,599,873.01 | 1,827,319.75 | 2,064,663.21 | 2,266,739.84 | 2,484,109.88 |
| 1999 | 225,338.06 | 449,688.00 | 673,342.00 | 848,755.00 | 1,046,378.00 | 1,232,125.00 | 1,466,437.00 | 1,724,466.00 | 1,943,968.00 | 2,191,918.00 | 2,423,991.00 | 2,643,404.00 |
| 2000 | 221,064.45 | 440,297.21 | 702,865.00 | 869,993.00 | 1,095,362.00 | 1,266,168.00 | 1,528,923.00 | 1,779,698.00 | 2,017,275.00 | 2,252,953.00 | 2,457,971.00 | 2,670,130.00 |
| 2001 | 215,330.53 | 454,804.00 | 678,375.00 | 845,618.00 | 1,039,496.00 | 1,264,309.00 | 1,505,085.00 | 1,763,694.00 | 2,001,290.00 | 2,239,477.76 | 2,444,619.00 | 2,697,348.00 |
| 2002 | 253,536.59 | 491,062.00 | 735,833.00 | 910,739.00 | 1,137,595.00 | 1,383,420.00 | 1,631,659.00 | 1,876,404.00 | 2,135,952.00 | 2,391,477.00 | 2,623,821.00 | 2,876,837.00 |
| 2003 | 221,073.02 | 459,066.94 | 708,767.35 | 918,037.64 | 1,114,035.73 | 1,358,344.00 | 1,616,405.44 | 1,859,085.05 | 2,144,443.19 | 2,397,449.07 | 2,617,065.02 | 2,875,884.94 |
| 2004 | 211,940.67 | 450,198.03 | 758,255.00 | 953,122.46 | 1,164,324.24 | 1,462,324.83 | 1,700,714.61 | 1,975,815.07 | 2,249,829.91 | 2,499,778.34 | 2,734,715.23 | 2,935,650.77 |
| 2005 | 265,786.55 | 507,402.09 | 798,733.74 | 986,249.82 | 1,214,730.53 | 1,447,402.35 | 1,727,426.01 | 1,989,048.86 | 2,288,398.79 | 2,548,313.18 | 2,781,602.13 | 3,034,249.12 |
| 2006 | 254,361.27 | 458,167.21 | 783,981.18 | 1,045,677.93 | 1,279,903.35 | 1,539,607.99 | 1,801,673.17 | 2,055,182.66 | 2,345,555.64 | 2,610,153.95 | 2,851,067.24 | 3,113,884.86 |
| 2007 | 250,931.45 | 480,761.10 | 831,983.17 | 1,071,845.92 | 1,337,601.85 | 1,616,269.30 | 1,866,999.85 | 2,150,010.54 | 2,443,418.12 | 2,719,808.31 | 2,975,203.56 | 3,245,927.10 |
| 2008 | 256,516.74 | 500,435.31 | 822,173.65 | 1,032,891.82 | 1,296,663.60 | 1,573,571.67 | 1,824,448.39 | 2,107,111.74 | 2,377,176.30 | 2,668,121.62 | 2,946,835.29 | 3,214,061.43 |
| 2009 | 262,888.10 | 507,166.10 | 829,683.87 | 1,023,123.43 | 1,239,370.85 | 1,503,712.37 | 1,756,988.77 | 2,004,608.16 | 2,282,362.31 | 2,521,386.88 |